=== HTTP code : 200 ===

HTTP/1.1 200 OK
Date: Sun, 05 Apr 2015 22:57:15 GMT
Server: Apache
Last-Modified: Thu, 11 Aug 2011 19:47:39 GMT
ETag: "8400d-3d624-11bbecc0"
Accept-Ranges: bytes
Content-Length: 251428
Connection: close
Content-Type: application/pdf


Link is valid.